Package net.kaczmarzyk.spring.data.jpa.domain

Class Empty<T>

java.lang.Object

net.kaczmarzyk.spring.data.jpa.domain.PathSpecification<T>

net.kaczmarzyk.spring.data.jpa.domain.Empty<T>

All Implemented Interfaces:

Serializable, org.springframework.data.jpa.domain.Specification<T>

public class Empty<T>
extends PathSpecification<T>

Filers with "is empty" (when parameter value is "true") or "is not empty" (when parameter value is "false") where clause for collections (e.g. customer.orders is empty).

Requires boolean parameter.

Author:

Hubert Gotfryd (Tratif sp. z o.o.)

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected String	expectedValue

Fields inherited from class net.kaczmarzyk.spring.data.jpa.domain.PathSpecification

path

Constructor Summary

Constructors

Constructor	Description
Empty(QueryContext queryContext, String path, String[] httpParamValues, Converter converter)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
int	hashCode()
jakarta.persistence.criteria.Predicate	toPredicate(jakarta.persistence.criteria.Root<T> root, jakarta.persistence.criteria.CriteriaQuery<?> query, jakarta.persistence.criteria.CriteriaBuilder criteriaBuilder)
String	toString()

Methods inherited from class net.kaczmarzyk.spring.data.jpa.domain.PathSpecification

path

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.springframework.data.jpa.domain.Specification

and, or

Field Details

expectedValue

protected String expectedValue

Constructor Details

Empty

public Empty(QueryContext queryContext,
 String path,
 String[] httpParamValues,
 Converter converter)

Method Details

toPredicate

public jakarta.persistence.criteria.Predicate toPredicate(jakarta.persistence.criteria.Root<T> root,
 jakarta.persistence.criteria.CriteriaQuery<?> query,
 jakarta.persistence.criteria.CriteriaBuilder criteriaBuilder)

equals

public boolean equals(Object o)

Overrides:

equals in class PathSpecification<T>

hashCode

public int hashCode()

Overrides:

hashCode in class PathSpecification<T>

toString

public String toString()

Overrides:

toString in class Object